Question about Apple MacBook Mac Notebook

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My Mac Book will not work i plug in the power cord and turn it on you can hear the fan going but nothing will turn on and i leave it alone and the fan will go on forever without any progress. help please

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Have your Mac OS disc handy, start your computer, as it starts, press and hold the power button, this will cause the mac to shut off. Then push the button again, while it is starting push your os disc in the drive. The goal is to get the computer to load the OS disc so you can access the Disk Utility program from the file menu.
If you're having trouble getting past the fan still, restart while holding the commnad, option, p and r keys together. Continue to hold these down until you hear the start up chime. keep holding and let it do this twice. This is "zapping" thie PRAM ... Then start it again... These should help...
k

Posted on Sep 09, 2009

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Posted on Jan 02, 2017

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If your Macintosh computer won't turn on, here's how to troubleshoot it. Please keep in mind that although your computer may display similar symptoms that prevent it from showing video, this article discusses what to do if the computer won't turn on, meaning that when you press the power button:
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If your computer doesn't display any video, it may display one or more of these similar symptoms when you press the power button:
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If any of these conditions occurs, see the Troubleshooting: My computer has no video article instead. If your computer won't turn on, try each of these steps:
  1. Make sure that the power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. (To check if the wall socket is working, plug in a lamp or other electrical device.)
  2. Make sure that the power adapter is properly connected to the power port on the back of the computer.
  3. Disconnect all accessories that are plugged into the computer, such as a printer, hub, or iPod.
  4. Reset the computer's PMU or PRAM.
    • For a portable (iBook or PowerBook), click here for instructions.
    • For a Mac mini, click here.
    • For an iMac, click here.
    • For a Power Mac, click here.
    • For a Mac Pro click here.
    • For a MacBook or MacBook Pro, click here.
    • For any other computer, click here for instructions on resetting the PRAM.
  5. Try plugging a different power cord into the computer (if you have a working one available). If the computer starts up, replace the old power cord. You can get a replacement cord for some models here.
  6. If the computer uses a power adapter, try connecting a different power adapter to the computer (if you have a working one available). If the computer starts up, replace the old power adapter. (Computers that use a power adapter include MacBook, MacBook Pro, iBooks, PowerBooks, Power Mac G4 Cube, and Mac mini.)
  7. If you tried all of the steps above and the computer still won't turn on, contact Apple technical support (1-800-APL-CARE in the U.S.) or take your computer to your local Apple Store or Apple Authorized Service Provider (AASP) for diagnosis.

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